package com.mmall.service.Impl;

import com.google.common.collect.Lists;
import com.mmall.common.ServerResponse;
import com.mmall.service.UserService;
import com.mmall.service.IFileService;
import com.mmall.util.FTPUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.util.UUID;


/**
 * Created by geely
 */
@Service("iFileService")
public class FileServiceImpl implements IFileService {

    @Autowired
    private UserService userService;
    private Logger logger = LoggerFactory.getLogger(FileServiceImpl.class);


    public ServerResponse upload(MultipartFile file, String path, String oldFileName, String fileFolder){
        String fileName = file.getOriginalFilename();
        //扩展名
        //abc.jpg
        String fileExtensionName = fileName.substring(fileName.lastIndexOf(".")+1);
        String uploadFileName = UUID.randomUUID().toString()+"."+fileExtensionName;
        logger.info("开始上传文件,上传文件的文件名:{"+fileName+"},上传的路径:{"+path+"},新文件名:{"+uploadFileName+"}",fileName,path,uploadFileName);

        File fileDir = new File(path);
        if(!fileDir.exists()){
            fileDir.setWritable(true);
            fileDir.mkdirs();
        }
        File targetFile = new File(path,uploadFileName);


        try {
            file.transferTo(targetFile);
            //文件已经上传成功了

            //删除之前的文件
            if(oldFileName!=null&&oldFileName!=""){
                FTPUtil.deleteFile(oldFileName,fileFolder);
            }
            FTPUtil.uploadFile(Lists.newArrayList(targetFile),fileFolder);
            //已经上传到ftp服务器上

            targetFile.delete();
        } catch (IOException e) {
            logger.error("上传文件异常",e);
            return ServerResponse.createByErrorMessage("上传异常");
        }
        return ServerResponse.cerateBySuccess("上传成功",targetFile.getName());
    }
    public ServerResponse  uploadFile(MultipartFile file,String path,String fileFolder){

        String fileName = file.getOriginalFilename();
        //扩展名
        //abc.jpg
        String fileExtensionName = fileName.substring(fileName.lastIndexOf(".")+1);
        String uploadFileName = UUID.randomUUID().toString()+"."+fileExtensionName;
        logger.info("开始上传文件,上传文件的文件名:{"+fileName+"},上传的路径:{"+path+"},新文件名:{"+uploadFileName+"}",fileName,path,uploadFileName);

        File fileDir = new File(path);
        if(!fileDir.exists()){
            fileDir.setWritable(true);
            fileDir.mkdirs();
        }
        File targetFile = new File(path,uploadFileName);


        try {
            file.transferTo(targetFile);
            //文件已经上传成功了

            FTPUtil.uploadFile(Lists.newArrayList(targetFile),fileFolder);
            //已经上传到ftp服务器上

            targetFile.delete();
        } catch (IOException e) {
            logger.error("上传文件异常",e);
            return ServerResponse.createByErrorMessage("上传失败");
        }
        return ServerResponse.cerateBySuccess("上传成功",targetFile.getName());
    }

}

